ATE88044T1 - DIFFERENTIAL AMPLIFIER WITH CONTROLLABLE POWER CONSUMPTION. - Google Patents

DIFFERENTIAL AMPLIFIER WITH CONTROLLABLE POWER CONSUMPTION.

Info

Publication number
ATE88044T1
ATE88044T1 AT88100535T AT88100535T ATE88044T1 AT E88044 T1 ATE88044 T1 AT E88044T1 AT 88100535 T AT88100535 T AT 88100535T AT 88100535 T AT88100535 T AT 88100535T AT E88044 T1 ATE88044 T1 AT E88044T1
Authority
AT
Austria
Prior art keywords
differential amplifier
channel
field effect
effect transistors
power consumption
Prior art date
Application number
AT88100535T
Other languages
German (de)
Inventor
Bedrich J Prof Hosticka
Roland Dipl-Ing Klinke
Hans-Joerg Prof Pfleiderer
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE88044T1 publication Critical patent/ATE88044T1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45112—Indexing scheme relating to differential amplifiers the biasing of the differential amplifier being controlled from the input or the output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45192—Indexing scheme relating to differential amplifiers the differential amplifier contains current mirrors comprising diodes which act as a load for the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45281—One SEPP output stage being added to the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45466—Indexing scheme relating to differential amplifiers the CSC being controlled, e.g. by a signal derived from a non specified place in the dif amp circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45471—Indexing scheme relating to differential amplifiers the CSC comprising one or more extra current sources

Abstract

The differential amplifier has two n-channel or p-channel field effect transistors serving as controllable current sources which supply auxiliary currents upon appearance of an input signal which amplify the quiescent current. The inputs of the differential amplifier are connected to the gate terminals of the n-channel or p-channel field effect transistors via a level-converting circuit for converting the d.c. component of the input signal superimposed on a gate bias voltage to a lower or, respectively, higher output level. As a result of the control of the current sources proceeding from the amplifier input good driver qualities, a distortion-free signal transmission and a lower dissipation power are guaranteed.
AT88100535T 1987-01-22 1988-01-15 DIFFERENTIAL AMPLIFIER WITH CONTROLLABLE POWER CONSUMPTION. ATE88044T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873701791 DE3701791A1 (en) 1987-01-22 1987-01-22 DIFFERENTIAL AMPLIFIER WITH CONTROLLABLE POWER CONSUMPTION
EP88100535A EP0275940B1 (en) 1987-01-22 1988-01-15 Differential amplifier with controllable power consumption

Publications (1)

Publication Number Publication Date
ATE88044T1 true ATE88044T1 (en) 1993-04-15

Family

ID=6319307

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88100535T ATE88044T1 (en) 1987-01-22 1988-01-15 DIFFERENTIAL AMPLIFIER WITH CONTROLLABLE POWER CONSUMPTION.

Country Status (6)

Country Link
US (1) US4843341A (en)
EP (1) EP0275940B1 (en)
JP (1) JPS63194404A (en)
AT (1) ATE88044T1 (en)
CA (1) CA1290029C (en)
DE (2) DE3701791A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4959621A (en) * 1988-07-21 1990-09-25 Siemens Aktiengesellschaft Differential amplifier having externally controllable power consumption
US4956613A (en) * 1988-07-21 1990-09-11 Siemens Aktiengesellschaft Differential amplifier having externally controllable power consumption
NL8802719A (en) * 1988-11-07 1990-06-01 Philips Nv RELAXATION OSCILLATOR WITH DELAY CONTROL.
IT1240671B (en) * 1990-03-01 1993-12-17 Sos-Thomson Microelectronics MICROPHONE PREAMPLIFIER BALANCED IN CMOS TECHNOLOGY
EP0451378A1 (en) * 1990-04-10 1991-10-16 Hewlett-Packard Limited FET amplifying circuits and methods of operation
US5068621A (en) * 1990-08-13 1991-11-26 Triquint Semiconductor, Inc. Compensation method and apparatus for enhancing single-ended to differential conversion
US5343164A (en) * 1993-03-25 1994-08-30 John Fluke Mfg. Co., Inc. Operational amplifier circuit with slew rate enhancement
FR2710798B1 (en) * 1993-09-27 1995-11-10 Alcatel Mobile Comm France Amplification chain in current mode, operational amplifier, gain cell and corresponding amplification element.
DE19608776C2 (en) * 1996-03-07 2003-03-20 Atmel Germany Gmbh Integrated circuit arrangement with a bus logic unit connected to a data bus
JP3338771B2 (en) * 1997-09-04 2002-10-28 山形日本電気株式会社 Operational amplifier
SE9801117D0 (en) * 1998-03-30 1998-03-30 Astra Ab Electrical device
DE102004046238A1 (en) 2004-09-22 2006-03-23 Endress + Hauser Flowtec Ag Magnetic-inductive flowmeter
DE102007015368A1 (en) 2007-03-28 2008-10-02 Endress + Hauser Flowtec Ag Method for operating a magnetic-inductive flowmeter
US8487695B2 (en) 2011-09-23 2013-07-16 Tensorcom, Inc. Differential source follower having 6dB gain with applications to WiGig baseband filters
WO2013043954A2 (en) * 2011-09-23 2013-03-28 Tensorcom, Inc. A high performance divider using feed forward, clock amplification and series peaking inductors
US8680899B2 (en) 2011-09-23 2014-03-25 Tensorcom, Inc. High performance divider using feed forward, clock amplification and series peaking inductors
AU2016358191A1 (en) 2015-11-17 2018-05-31 Tensorcom, Inc. High linearly WiGig baseband amplifier with channel select filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1517163A (en) * 1975-09-18 1978-07-12 Post Office Class a amplifier
JPS596607A (en) * 1982-07-05 1984-01-13 Hitachi Ltd Differential amplifying circuit
US4554515A (en) * 1984-07-06 1985-11-19 At&T Laboratories CMOS Operational amplifier
JPH0618308B2 (en) * 1985-04-08 1994-03-09 ソニー株式会社 Balanced differential amplifier

Also Published As

Publication number Publication date
US4843341A (en) 1989-06-27
JPS63194404A (en) 1988-08-11
EP0275940A3 (en) 1989-05-17
DE3879970D1 (en) 1993-05-13
CA1290029C (en) 1991-10-01
EP0275940A2 (en) 1988-07-27
EP0275940B1 (en) 1993-04-07
DE3701791A1 (en) 1988-08-04

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Legal Events

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REN Ceased due to non-payment of the annual fee